Endress+Hauser Liquiline CM442R - Connecting the Measuring Device

Liquiline CM442R/CM444R/CM448R Electrical connection
Endress+Hauser 25
6.2 Connecting the measuring device
WARNING
!
The device is live!
Incorrect wiring can result in injury or fatality
‣ Prior to beginning any wiring work, make sure voltage is not applied to any of the cables.
NOTICE
The device does not have a power switch
‣ At the installation location, you must provide a protected circuit breaker in the vicinity of the
device.
‣ The circuit breaker must be a switch or a power-circuit breaker and must be labeled as the
circuit breaker for the device.
‣ At the supply point, the power supply for the 24 V versions must be isolated from dangerous
live cables by double or reinforced insulation.
6.2.1 Cable terminals
Plug-in terminals for Memosens and PROFIBUS/RS485 connections
After connection, make sure that every cable end is securely in place. Terminated cable
ends, in particular, tend to come loose easily if they have not been correctly inserted as far
as possible.
a0012691
Fig. 13: Press the screwdriver against
the clip (opens the terminal)
a0012692
Fig. 14: Insert the cable until the limit
stop
a0012693
Fig. 15: Remove the screwdriver (closes
the terminal)